https://www.idtprof.net/blog/ Technology education, teaching resources, and news for subjects I teach en-us https://www.idtprof.net/vendor-security-bulletin-triage-lab/ https://www.idtprof.net/vendor-security-bulletin-triage-lab/ Tue, 01 Sep 2026 11:30:00 +0000 Goal https://www.idtprof.net/authenticated-session-theft-lab/ https://www.idtprof.net/authenticated-session-theft-lab/ Mon, 31 Aug 2026 11:30:00 +0000 A stolen password is not the only way to take over an account. This lab shows why an authenticated browser session is itself a valuable credential and why multifactor authentication cannot protect a session after it has already been issued. https://www.idtprof.net/ai-agent-containment-threat-model-lab/ https://www.idtprof.net/ai-agent-containment-threat-model-lab/ Thu, 27 Aug 2026 11:30:00 +0000 A virtual machine is a useful security boundary, but it is not a guarantee. This lab asks students to compare two AI-agent containment designs and explain how unnecessary features increase attack surface. https://www.idtprof.net/ai-accessibility-scan-verification-lab/ https://www.idtprof.net/ai-accessibility-scan-verification-lab/ Sat, 22 Aug 2026 11:30:00 +0000 Automated accessibility tools can find useful problems, but a passing scan does not prove that a page is accessible. This lab asks students to use an AI-assisted scan, verify one finding independently and document the limits of the tool. https://www.idtprof.net/floating-point-order-reproducibility-lab/ https://www.idtprof.net/floating-point-order-reproducibility-lab/ Fri, 21 Aug 2026 11:30:00 +0000 Floating-point arithmetic follows finite computer representations, not the exact rules of real-number algebra. This short lab makes that difference visible. https://www.idtprof.net/expired-domain-link-ownership-lab/ https://www.idtprof.net/expired-domain-link-ownership-lab/ Thu, 20 Aug 2026 11:30:00 +0000 Audit a safe mock link inventory to see how an expired domain can turn an old trusted link into a security and preservation problem. https://www.idtprof.net/ai-watermark-evidence-lab/ https://www.idtprof.net/ai-watermark-evidence-lab/ Wed, 12 Aug 2026 11:30:00 +0000 Evaluate an AI watermark as one provenance signal—not proof of authorship or misconduct. https://www.idtprof.net/frame-based-vs-text-python/ https://www.idtprof.net/frame-based-vs-text-python/ Mon, 10 Aug 2026 23:00:00 +0000 Solve the same nested Python exercise in Strype and a text editor, then compare structure, editing speed, and cognitive overhead. https://www.idtprof.net/kubernetes-classifier-vs-authorization/ https://www.idtprof.net/kubernetes-classifier-vs-authorization/ Mon, 10 Aug 2026 13:30:00 +0000 Compare confirmation gates with Kubernetes RBAC to distinguish accident prevention from actual authorization boundaries. https://www.idtprof.net/memory-hierarchy-model-capability/ https://www.idtprof.net/memory-hierarchy-model-capability/ Sun, 09 Aug 2026 23:00:00 +0000 Use an extreme local-AI example to reason about SRAM, PSRAM, flash, quantization, and the difference between model fit and model usefulness. https://www.idtprof.net/ai-data-evidence-trail-lab/ https://www.idtprof.net/ai-data-evidence-trail-lab/ Fri, 07 Aug 2026 23:00:00 +0000 Ask an AI assistant a bounded Internet-data question, inspect its trace, and grade the evidence rather than the confidence of its prose. https://www.idtprof.net/prompt-is-not-a-perimeter/ https://www.idtprof.net/prompt-is-not-a-perimeter/ Thu, 06 Aug 2026 13:00:00 +0000 A short security exercise that separates behavioral instructions from credentials, tool policy, network controls, validation, and audit evidence. https://www.idtprof.net/coding-agent-evidence-lab/ https://www.idtprof.net/coding-agent-evidence-lab/ Wed, 05 Aug 2026 23:00:00 +0000 Compare an agent request, activity log, Git diff, and test results to distinguish explanation, observable action, and verified behavior. https://www.idtprof.net/baseline-upgrade-test-rollback/ https://www.idtprof.net/baseline-upgrade-test-rollback/ Tue, 04 Aug 2026 13:00:00 +0000 Measure a small web project, upgrade one dependency on a branch, test the result, and document a rollback path. https://www.idtprof.net/secret-scanning-git-history-lab/ https://www.idtprof.net/secret-scanning-git-history-lab/ Mon, 03 Aug 2026 23:00:00 +0000 Commit a deliberately fake token, scan the repository, remove it, and prove that deleting the current line does not erase Git history. https://www.idtprof.net/browser-python-prediction-debugging-lab/ https://www.idtprof.net/browser-python-prediction-debugging-lab/ Sat, 01 Aug 2026 23:00:00 +0000 A zero-setup Python activity built around predicting output, changing one variable or loop bound, and explaining the result. https://www.idtprof.net/compare-sbom-cisa-minimum-elements/ https://www.idtprof.net/compare-sbom-cisa-minimum-elements/ Sat, 01 Aug 2026 13:00:00 +0000 Inspect a software bill of materials and determine which minimum elements it records, omits, or makes difficult to verify. https://www.idtprof.net/three-screen-figma-prototype-lab/ https://www.idtprof.net/three-screen-figma-prototype-lab/ Thu, 30 Jul 2026 23:00:00 +0000 Turn a website plan into a three-screen clickable prototype, collect peer feedback, and document one evidence-based revision. https://www.idtprof.net/unfamiliar-repository-untrusted-code/ https://www.idtprof.net/unfamiliar-repository-untrusted-code/ Thu, 30 Jul 2026 17:00:00 +0000 Inspect scripts, dependencies, and execution paths in an unfamiliar repository before running it. https://www.idtprof.net/align-existing-assignment-csta-standards/ https://www.idtprof.net/align-existing-assignment-csta-standards/ Thu, 30 Jul 2026 13:00:00 +0000 A short curriculum-alignment lab that maps an existing assignment to a formal standard and identifies one missing practice or outcome.